Material: | PTFE |
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Application: | Cylinder |
Type: | Shaft Seal |
Performance: | Corrosion |
Shape: | O-Ring |
Standard: | Standard, Nonstandard |
Customization: |
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Item | Spring energized seals |
Material | PTFE, PTFE+carbon, PTFE+glass fiber, PTFE+bronze, PTFE+polyester,PU, NBR, FKM, PA, POM, Silicone, EPDM, FFKM, UPE, PEEK etc. |
Type | VR/VRJ/VP/VPJ/VD/VB/VC/HR/HRJ/HP/HPJ/HB/HC/CR/CP/CD/CB/CC |
Color | White/black/brown/geen/blue etc. |
Spring | 304/316 |
Properties | suitable for static, rotary, and reciprocating application in temperatures from cryogenic to 300 ºC |
Application | mining, machine,LNG, Food,Valves,Pumps,Separators Actuators,Dosing devices etc. |
A PTFE sealing ring energized by an O-ring is designed for bi-directional pressurization, pneumatic pistons, such as in control cylinders, in quick acting cylinders, and servo-assisted equipment. It is dedicated for assembly on an integral piston to serve as a high extrusion resistance but very low sliding friction sealing in pneumatic applications.
Application range
Pressure: ≤16BAR
Temperature: -60~+200ºC
Speed: ≤4m/s
Material: Bronze filled PTFE
*Other materials are available for specified conditions
Guidelines for the Selection of Special Size
Piston diameter | Groove bottom | Groove width | Radius | Gap | Gland code | O-ring C.S. |
φDa | φDi | L | R | T | ||
4~15.9 | Di-4.0 | 2.0 | 0.5 | 0.2 | A | 1.78 |
16~26.9 | Di-6.0 | 2.85 | 0.5 | 0.25 | B | 2.62 |
27~49.9 | Di-7.5 | 3.8 | 0.5 | 0.25 | C | 3.53 |
50~129.0 | Di-12.5 | 5.6 | 0.9 | 0.5 | D | 5.33 |
130~179.9 | Di-15.0 | 7.55 | 0.9 | 0.5 | E | 6.99 |
180~239.9 | Di-18.0 | 7.55 | 0.9 | 0.75 | F | 6.99 |
240~420 | Di-24.0 | 7.55 | 0.9 | 1.0 | G | 6.99 |
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